I ran the "gulp localhost" command in step 9.

Then I typed "http://localhost:8080/demo2/dist/" into my browser.
So the following error message appears.
"Cannot GET /demo2/dist/"

or
If you type "http://localhost:8080/"

"Cannot GET /"
A message is displayed.

My computer installation path is as follows.

"C:\metronic\theme\tools"
I installed it in the above path.

Help.
What setting am I doing wrong?